@article {IOPORT.05752817,
    author       = {Guravannavar, Ravindra},
    title        = {Optimization and evaluation of nested queries and procedures.},
    year         = {2009},
    journal      = {Computing Research Repository (CoRR)},
    volume       = {2009},
    pages        = {Article No. 0911.0508},
    publisher    = {Association for Computing Machinery, New York, NY; Cornell University, Ithaka, NY},
    identifier   = {05752817},
}